Substitution
Tell which given value, if any, is the solution to the equation.
9 + a = 46
a = 37,39,41,55
a = 37
4y = 48
4y / 4 = 48 / 4
Division Property of Equality.
Solve.
g - 8 = 25
g = 33
Solve.
4r = 20
r = 5
8c = 64
c = 6,7,8,9
c = 8
Tell which property of equality was used.
14 + s = 28
(14 + s) - 2 = 28 - 2
Subtraction Property of Equality
Solve.
25 + y = 42
y = 17
Solve.
1 = u/2
u = 2
Tell which given value, if any, is the solution to the equation.
14 = u/6
u = 78,81,84,90
u = 84
Tell which property of equality was used.
88 = 33 + 5x
88 + 4 = (33 + 5x) + 4
Addition Property of Equality
n + 25 = 233
Subtract 25 from each side.
Solve.
16d = 2,864
d = 179
Tell which given value, if any, is a solution to the equation.
6.8 = 2.89 + m
m = 3.9, 3.91, 4, 4.11
m = 3.91
Answer yes or no and explain why or why not.
If 10 x 3 = 30, does 10 x 3 + 4 = 30 + 5?
No because they added 4 to one side, and 5 to the other.
Only 12 students can be in the next school play. Let t represent the number of student who tried out. The number of students who tried out, but did not get a role is 42.
Write an equation to represent this situation.
t - 12 = 42
Solve.
180 = g/12
g = 2,160
Tell which given value, if any, is a solution to the equation.
d / 5.20 = 2.40
d = 10.92, 16.12, 17.68
No solution is given in the set of values.
Which equation is NOT equivalent to 5 + n = 10?
a. 5 + n - n = 10 - n
b. 5 + n - 5 = 10 - 10
c. 5 + n - 5 = 10 - 5
In the equation 8x - 1 = 3x + 4 the variable x represents the same value. Which value of x is the solution of the equation; x = 0, 1 , 2 , or 3?
x = 1
There are 45 houses in Grey's Lake subdivision. Each house uses 400 gallons of water each day. Write a division equation to represent the total number of gallons of water used daily in Grey's Lake subdivision.
w / 45 = 400